package com.ktjy.utils;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

import java.io.IOException;
import java.io.InputStream;

public class MyBatisUtil {
    static SqlSessionFactory factory = null;
    static {
        try {
        //1.创建一个工厂构建对象
        SqlSessionFactoryBuilder sqlSessionFactoryBuilder = new SqlSessionFactoryBuilder();
        //2.加载mybatis的核心配置文件
        InputStream is = Resources.getResourceAsStream("mybatis-conﬁg.xml");
        //3.创建工厂对象
        factory = sqlSessionFactoryBuilder.build(is);
        }catch (IOException e){
             throw  new RuntimeException(e);
        }
    }

    public static SqlSession getSession(){
        SqlSession session = factory.openSession(false);
        return session;
    }

    public static void closeSession(SqlSession session){
        if (session != null){
            session.close();
        }

    }
}
